Door-latch



H. McVITTIE.

DOOR LATCH.

, APPLICATION FILED DEC. 6, 1919. 1,384,620. Patented July 12, 1921.

' 2 SHEETS-SHEET I.

.zz Q7A L 7 z g E H. MCVITTIE.

DOOR LATCH.

APPLICATloN FILED DEC, 6. 1919.

1,384,620, Patented July 12, 1921.

2 SHEETS-SHEET Z.

UNITED STATES PATENT oFFlcE.

` HENRY MGVITTIE, 0F BEND, OREGON, ASSIGNOR 0F ONEZHALF T0 JOSEPHTRIPOLI, OF BEND, OREGON.

DOOR-LATCH.

Specification of Letters Patent.

Patented July 12, 1921.

Application led December 6, 1919. Serial 342,985.

To all whom/12mg concern:

Be it known that I, HENRY MCVITTIE, a citizen of the United States,residing at Bend, in the county of Deschutes and State ol' Oregon, haveinvented certain new and useful Improvements in' Door-Latches; and l dohereby declare the following to be a f ull, clear, and exact descriptionof the lnvention, such as will enable others skilled in the art to whichit appertains to make and use the same. y :mi

This invention relates to new and useful improvements in door latches,and has for one of its objects the provision of a button upon each sideof the door for retractmg a spring latch bolt from its keeper by pullingon one of the buttons and pushing on the other` button, and said buttonsare so arranged with respect to the swinging of the door that whenpressure is' made on the push button it will swing the door open afterthe retraction of the latch bolt, and a pull exerted on the pull buttonwill open the door after the retraction of the latch bolt.

Another object oi this invention is the provision of a door catch of theabove stated character which shall be simple, durable and elicient, andwhich may be manufactured and sold at a comparatively low cost.

With these and other objects in view as will become more apparent as thedescription proceeds, the invention consists in certain i novel featuresof construction, combination,

and arrangement of parts as will be hereinafter more fully described andclaimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which- Figure 1is a front elevation of a door illustrating a catch applied thereto andcon-l structed in accordance with my invention, .x

Fig. 2 is an end view of the door illustrate ingwthe pull and pushbuttons to the catch,

ig. 3 is a plan view of the catch with one1 section of the casingremoved,

Fig. 4 is a transverse sectional view illustrating springs for normallyurging the catch bolt outwardly of the casing,

Fig. 5 is a plan View of one of the sections of the casing,

Fig. 6 is a perspective view of the -latch bolt,

Fig. 7 is a plan view of the actuating rod.'

Referring in detail to the drawings, the

numeral 1 indicates a door frame having hlnged thereto la swinging door2 of any desired construction. The door 2 at its free end is providedwith a slot 3 that opens outwardly through the free end of the door toslidably receive a casing 4. The slot 3 has concaved walls and thecasing 4 is of substantially cylindrical shape and is adapted to be slidwithin the pot 3 from the free edge of the door and be h 1d therein bythe concaved walls of the sl t. The frame 1 adjacent the slot 3 is provded with an ordinary keeper 4 adapted to receive a latch bolt 5. Thecasing 4 consists/ of a pair of substantially T-shaped sections, thearms of which project beyond each side of the slot 3 while the legportion is confined within the slot. The leg portion of each of thesections is provided with a groove 6 to slidably receive the latch bolt5, and which groove also extends into the arm portions of said sections.The arm portions of the sections of the casing are provided with grooves7 that communicate with the grooves 6 and one portion of the grooves 7of each of the sections is provided with an enlarged portion 8 defininga straight shoulder 9 while the grooves 7 are cut away as illustrated at10 to form an inclined shoulder 11. An actuating rod 12 is slidablymounted within the groove 7 and projects beyond each end of the armportion of the T-shaped casing and has secured to its ends finger gripsor knobs 13. Ashoulder or cam 14 is formed upon the actuating rod 12land has an inclined face 15 anda straight shoulder 17 which straightshoulder is adapted to abut the straight shoulder 9 for limiting themovement of the actuating rod in one direction, while the inclinedshoulder 11 is adapted to be engaged by the inclined face 15 of theshoulder 14 for limiting the movement of the actuating rod in the otherdirection.

The latch bolt 5 consists of a head 18 having the usual inclinedstriking face 19 and said head has secured to its side faces asubstantially U-shaped strap 20, which strap receives the actuating rod12 and is slidably received within the groove 6 of the casing. A block21 is secured within notches 22 formed in the walls of the groove 6 ofthe casing and is engaged by an expansion spring 23 which is disposedbetween the arms of the strap 20 and has its other end bearing againstthe head of the locking bolt,

so that the spring normally urges the locking bolt outwardly of thecasing for engagement with the keeper 4. The normal position of theactuating rod 12 is with the shoulder 17 against the shoulder 9 of thecasing and with the strap 20 at the beginning of the inclined face ofthe shoulder 14 so that upon pushing the actuating rod in one direction,the locking bolt 5 will be retracted against the tension of the springowing to the strap 20 riding against the inclined face of the shoulder14., thus retracting or disengaging the locking bolt from the keeper 4permitting the door to be swung open.

It is to be noted that the normal position of the actuating rod is thatone of the push buttons 13 is in close proximity to the casing, whilethe other one is spaced a considerable .distance therefrom so that it isnecessary that you push upon one of the push buttons and pull upon theother button to retract the latch bolt.

The push and pull buttons 13 are arranged on the proper sides of thedoor so that when it is desired to open the door from the inside,pressure is exerted upon the push button which retracts the bolt andalso swings the door open and when operated from the outside a pull isexerted upon the pull button, retracting the latch bolt, and alsopulling the door open.

From the foregoing description, taken in connection with theaccompanying drawings, it will be noted that this device can be readilyand'conveniently applied to doors of different characters, such asautomobiles, carriage and house doors.

Plates 25 are secured to the door 2 and overlie the slot 3 and haveslots 26 to engage the casing 4 and also receive the actuating rod. Theplates prevent the casing 5 from being pulled out of the slot of the door when the door is in an opened position.

While I have shown and described the preferred embodiment of myinvention, it will be understood that minor changes in construction,combination, and arrangement of parts may be made without departing fromthe spirit and scope of the invention as claimed.

Having thus described my invention what I claim is A door latchcomprising a T-shaped casing having communicating grooves in its leg andarm portions, straight and inclined shoulders located in the groove ofthe arm portion and arranged on opposite sides of the groove in the legportion, an actuating rod slidable in the groove of the arm por tion, aspring pressed bolt in the groove of the leg portion, a strap secured tothe bolt and surrounding the rod and a cam on said rod and havingstraight and inclined faces HENRY MGVITTIE.

Witnesses:

J. M. LAWRENCE, S. DEBURG.

